Distributing apparatus for engines or the like.



E. M. BALLOT.

DISTRIBUTING APPARATUS FOR ENGINES OR THE LIKE.

. v APPLICATION FILED JAN.17, 1911. 1,089,81 1 Patented Mar. 10, 191 1 F2 Z w UNITED STATES. PATENT OFFICE.

ERNEST MAURICE BALLOT, OF PARIS, FRANCE.

DISTRIBUTING APPARATUS FOR ENGINES OR THE LIKE;

by a special cam. -Alsoaccording to this invention multiple orifices are used for admission and exhaust.

In the accompanying drawing given merely by way of example, Figure 1 is a vertical section through the axis of rotation of the controlling or driving cam of a' distribiiiting element. Fig. 2 is a vertical section'in aplane at a right angle to that of Fig. 1.

The cylinder 1 of the motor has a hemispherical head 2' provided witha branch 3 for the admission of the explosive mixture, and another branch 4 for the exhaust of the products of comlmstion. In this construction the head 2 is moreover provided with ports 5 and 6 in communication by means of suitable conduits, with the branches 3 and 4 respectively. The hemi-spherical cap 7 which constitutes a movable part of the distributer, is in its turn provided with ports 8 which can come alternately opposite the ports 5 and 6 of the head 2. The cap 7 is provided With an outside projection 9 which can. move freely in a groove 10 made in the end 2 and forming a guide for said *projec' tion. Through the said projection passes a rod 11 suitably secured to it by means of pins 12, and at its end the projection f) is turned to cylindrical shape for receiving a roller 13 mounted loosely on it. The cylinder end is surmounted by a box 14 closed by a cover 15, and two of the faces of the said casing are provided with bearings 16 intended to receive the journals of a spindle 17. The box 14 is intended to contain oil for insuring lubrication of the distributing mechanism.

Specification of Letters Patent.

Patented Mar. 10, 191 1.

Application filed January 17. 1911. Serial No. 603,096.

In the interior of the box 14, to two of its opposite faces, are secured two hooks 18 to which are attached the ends of helical springs 19 hooked at their other ends re about the geometrical axis of the spindle 17 of a meridian having the same center 0 as the cap 7 and the inner wall of the hemispherical end 2. The said cam 20 is provided with a groove 21 of constant depth for receiving the roller 13, and its shape in development is, of course, determined so as to tr rsmit to the cap 7 the different motions required for the distribution,- which depend therefore directly on the rotation of the cam 20, the spindle 17 of which is driven by the shaft of the engine by means of asuita'ble gear.

It will be readily understood that, owing to the shape of the cam 20, the roller 13 is always, in its movement of advance, at a constant distance from the center 0, which is an essential point. Thus, the ports 8 in said cap during its operation by said cam will alternately register with the ports 5 and 6 in the cylinder head, the edge of said cap being effected for covering and uncovering the lowermost ports 5 and 001 the cylinder. ()wing to the multiplicity of the ex haust and admission ports, the said movement of advance of the roller 13 can be, moreover, of the least possible amplitude. It will be seen, finally, that the arrangement; on the head of the cylinder of'conduits for the mixture to be drawn in, largely contrib utes to cooling it, as well as to cooling the movable cap which receives the fresh mixture at several points of its surface.

Having now particularly described and ascertained the nature of my. said invention and in what manner the same is to beper- ,formed, I declare that what I claim is:

A distributing mechanism of the character described for engines, pumps'or the like, comprising in combination a cylinder provided with ports in its head and having a roller, and springs tending to return the send-spherical cap provided with inlet and can into its normal position. I 10 exhaust openings registering with said ports In testimony Whereof'I affix-my signature of the cylinder head, a cam with its meridin presence of tWo Witnesses.

'i iun concentrically arranged to said cap for ERNEST MAURICE BALLOT.

controlling the oscillation of the same and Vitnessesi provided with a groove adapted to be en- H. C. COKE,

" gnged by a projection of said cap carrying a 1 GEoRGEsRoUANE'r. 

